PDX 2026-512 (80) E8.003.pdf
PDF 456 KB Posted
- Solicitation number
- 144651
- Issued by
- Multnomah County, Oregon
About this file
This is an electrical design drawing for the Portland International Airport Terminal and Concourses Wayfinding Signage project in Oregon. The document, prepared by PAE Engineers, presents partial one-line electrical diagrams for three busduct systems (C1, C2, and C3) that will support the wayfinding signage infrastructure. The drawings detail the electrical specifications for the deplaning tunnel mezzanine roof and enplaning busway systems, including three 1000A busways operating at 480Y/277V three-phase four-wire configuration with associated 45KVA transformers and 225A three-phase busplug connections. Additional unit substations are specified for the TCA area with 30KVA transformers at 480V-208Y/120V. The drawing was completed in August 2026 and approved by Grant Parthemer, a licensed Professional Engineer in Oregon (PE #44775), on July 24, 2026.
The document serves as a technical specification sheet for electrical distribution infrastructure and does not contain information regarding pricing terms, set-asides, incumbents, funding sources, or contract award details. The drawing is part of the construction documents for the broader wayfinding signage project and is intended for reference during the bidding and construction phases to ensure proper electrical system installation and capacity planning for the terminal renovation.
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Text version
DEPLANING
TUNNEL
MEZZANINE
ROOF
ENPLANING
BUSWAY C1
1000A 480Y/277V
3PH 4WIRE
4C3A
T
45KVA
2C3A
225A 3P
BUSPLUG
DEPLANING
TUNNEL
MEZZANINE
ROOF
ENPLANING
BUSWAY C2
1000A 480Y/277V
3PH 4WIRE
4C3B
T
45KVA
2C3B
225A 3P
BUSPLUG
TUNNEL
ROOF
BUSWAY C3
1000A 480Y/277V
3PH 4WIRE
4L3C-
25CE
T
4T3C-25CE
45KVA
480V-208Y 120V
2P3C-
25CE
225A 3P
BUSPLUG
DEPLANING
MEZZANINE
ENPLANING
225A 3P
BUSPLUG
4L1C-
27CE
T
4T1C-27CE
30KVA
480V-208Y 120V
2P1C-
27CE
UNIT SUBSTATION
TCA
AREA OF WORK
AREA OF WORK
E
E
UNIT SUBSTATION
TCA
AREA OF WORK
AREA OF WORK
E
E
UNIT SUBSTATION
TCB
AREA OF WORK
AREA OF WORK
E
E
AREA OF WORK
E
/4
/2
G R
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DRAWING SCALE IS REDUCED 50% WHEN SHEET SIZE IS 17" x 22".
SUBMITTED BY
DESIGNED BY
DRAWN BY
CHECKED BY
DATE
SHEET NO.
DRAWING NO.
TYPE
DISC. SHT. NO.
EAN PAN
NO. DATE BY REVISIONS
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NO. DATE BY REVISIONS
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IF ELECTRONIC SIGNATURE IS BROKEN OR MISSING - THIS IS NOT A LEGAL DRAWING
TYPE
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B▲ A▲
151 SW 1st Avenue #300 Portland, OR 97204
503.226.2921 pae-engineers.com
7/24/2026 8:55:45 AM Autodesk Docs://PDX Moving Walkways, Play Area & Wayfinding Signage/26-1037 - PDX Wayfinding MEP25.rvt
PARTIAL ONE LINES 3 - ELECTRICAL
PORTLAND INTERNATIONAL AIRPORT
E8.003
AUGUST 2026
G. PARTHEMER
P. MARKS
D. PEEK
JAY OSTLUND
TERMINAL AND CONCOURSES WAYFINDING SIGNAGE
PDX 2026-512
CD
1031012026D004
SCALE: NONE
PARTIAL ONE LINE DIAGRAM - BUSDUCT C1
SCALE: NONE
PARTIAL ONE LINE DIAGRAM - BUSDUCT C2
SCALE: NONE
PARTIAL ONE LINE DIAGRAM - BUSDUCT C3
L
R E
N
G
O
R
I
E
I
S
ST
S
E
E
N
ER
F
E
E
G
OD R
N
EXPIRES: 12/31/2026
P
A
I
44775PE
OREGONJ
U L Y 13 , 19 9
9G R
A
NT R. PA RTHEM
E R
07/24/26
| 2026-07-24T10:09:51-0700 | |
| Grant Parthemer | |
| I am approving this document. |
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